baber/WOPTO huggingface dataset:
Patent GB-1050608-A (GB)
IPC: G21C19/00
Abstract: 1,050,608. Nuclear reactors; treatment of spent nuclear fuel. GENERAL DYNAMICS CORPORATION. June 23, 1965 [July 20, 1964], No. 26542/65. Headings G6C and G6R. In a thorium-uranium 233 breeding nuclear reactor, the fuel is segregated into units containing uranium and units containing thorium; a portion of the spent fuel is removed, separated into its components, and reprocessed to remove fission products, neptunium and uranium 236; recovered uranium 233, thorium, and enriched uranium are then formed into separable components and returned to the reactor for the next cycle. The fuel may be in the form of spheroidal particles, some of which are coated and others of which are not coated or have a different coating, so that separation may be effected by dissolving one component; for example particles of one component may be coated with pyrolytic graphite. U233 is recovered from the thorium portion of the fuel and used in a subsequent cycle; thorium is recovered if desired. Fissile U235 is recovered from the other portion of the fuel. The reactor may be of the high temperature, graphite moderated, helium cooled type.
Patent GB-1053351-A (GB)
IPC: C23C24/10
Abstract: 1,053,351. Coating with metals. UNITED AIRCRAFT CORPORATION. June 9, 1965 [June 26, 1964], No. 24330/65. Heading C7F. Ni-Al-Ta coatings are formed on specific areas of Ni base alloys, defined by masks, by painting, dipping, spraying or blasting the substrate with a mixture of Al and Ta powders in a slurry of an organic dispersant and bonding the mixture onto the substrate by heating at 982 -1149 C. in hydrogen, argon or in vacuum. Further heating at 982  -1232 C. creates a stratified coating including three layers of varying Ni; Al composition. The dispersant may be selected from one or more of an alcohol ester or ketone and can contain a binding agent e.g. nitrocellulose, naphthalene and stearates and a wetting agent, the slurry being formed by ballmilling. The powder mixture contains 50-80% Ta and, the coating 1-10% Ta. The alloy contains at least 40% Ni and C, Cr, Co, V, W, Mo, Ti, or Al and is precleaned before coating.
Patent GB-1053810-A (GB)
IPC: B23D43/06
Abstract: 1,053,810. Milling-cutters. SCANIA-VABIS A.B. May 11, 1964, No. 19444/64. Heading B3K. A cutter comprises a number of teeth 32-35 secured to arcuate segments 26 secured to a central disc 20, the segments and disc having co-operating guides 21 to prevent transverse movement. The cutter may be employed for cutting crank-webs or for facing. Wedges 22 assist in securing the segments. The teeth are backed by plates 36 and are clamped by wedges 37 operated by the left- and right-hand screws 38. Some blades are adjusted radially by wedges 45, Fig. 7 (not shown), operated by similar screws and they, or others, are adjusted axially by screws 40, Fig. 9 (not shown), and wedges 42. A spare set of segments for each disc is prepared for use on a holder shaped like the disc. In a modification, the segments 54, Fig. 11 (not shown), are secured to the face of the disc for facing. One segment may be omitted, as at the space 55, and a workpiece 56 may be broached by providing segments having teeth of increasing height.
Patent GB-1225512-A (GB)
IPC: B60K23/00
Filed: 1968-03-18
Abstract: 1,225,512. Change-speed control. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. 18 March, 1968 [16 March, 1967; 14 July, 1967], No. 13060/68. Heading F2D. A steering-column-mounted gear lever 1 is formed with a sleeve 4 which slidably engages the stem of a ball 2 which actuates the slidable and rotatable gear control rod 11. The sleeve 4 is formed with an H-shaped slot which is engaged by a pin 6 fast with a housing 7. Axial movement of the sleeve 4 relative to the stem actuates, by way of a lever 8 pivoted to both the sleeve and the housing, a pneumatic or electric switch 10 controlling an auxiliary twospeed gear. The gear lever is pivotable in two perpendicular planes to provide, in all, eight normal forward speeds of the transmission, and by depressing the lever 1 downwardly against spring loading, reverse and an extra low forward ratio may be engaged.
Patent GB-1226522-A (GB)
IPC: H04R23/00
Filed: 1969-01-10
Abstract: 1,226,522. Photo-electric gramophone pick-up. TOKYO SHIBAURA ELECTRIC CO. Ltd. Jan.10, 1969 [Jan. 16, 1968], No. 1645/69. Heading G1A. A photo-electric gramophone pick-up comprises a light source 11, fixed attenuator members 14, 15 in front of respective photo-electric detectors 12, 13 and a movable attenuator member 16, bearing two rows of slit-shaped apertures, mounted on the cantilever stylus member 17. The members may be metal foils having slits formed by photoetching. Alternatively they may be transparent film members coated with opaque material except at the slit areas. Instead of three slits in each row, one or more than three may be provided. The slits may be of elliptical shape. The members may be comb-shaped. The member 16 is located so that the lower parts of the slits 22 in one row are aligned with the upper part of the slits 20 in the member 14, while the upper parts of the slits 23 in the other row are aligned with the lower parts of the slits 21 in member 15. By this arrangement, vibration of the member 16 attenuates radiation reaching the photo-cells 12, 13 in such a way that the correct phase relationship between the detector output signals is obtained, particularly important with stereophonic records.
Patent GB-1226680-A (GB)
IPC: A01B33/06
Filed: 1968-10-28
Abstract: 1,226,680. Soil cultivating implements. C. VAN DER LELY N.V. 28 Oct., 1968 [24 Nov., 1967], No. 11781/70. Divided out of 1,226,679. Heading A1B. The subject matter is identical with that in Specification 1,226,679 but the claims relate to the spacing of the soil working members and the levelling roller.
Patent GB-1226812-A (GB)
IPC: C01F7/473
Filed: 1968-03-19
Abstract: 1,226,812. Purifying sodium aluminate solutions. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES, and SOC. APPAREILS ET EVAPORATEURS KESTNER. 19 March, 1968 [20 March, 1967], No. 13179/68. Heading C1A. Sodium carbonate is eliminated from NaAlO 2  solution, obtained from reaction of bauxite with NaOH, and the solution concentrated for reuse, by increasing the temperature and concentration of the solution in a chain of evaporators, the final evaporator being heated by live steam, then passing the solution to a chain of expansion stages where the solution is cooled and concentrated by vaporization (the final concentrated solution being at 50-60 C. and of a total Na 2 O concentration of 300-330 gm./1.) and where fine crystals of Na 2 CO 3  are precipitated, each expansion stage supplying heating steam to a stage of the evaporator chain; caustic soda sufficient to bring the concentration of Na 2 O to about 350 gm./l. is then added to the suspension, causing an increase in the size of the Na 2 C0 3  crystals, which may then be filtered off. The caustic soda added is preferably 10-20% of the volume of the suspension, having an Na 2 O-content of 400-600 gm./1. It may be arranged that losses of caustic soda as impurities in the red muds produced in the bauxite treatment are exactly compensated for by the added NaOH.
Patent GB-1228587-A (GB)
IPC: C08G69/26
Filed: 1967-05-01
Abstract: 1,228,587. Copolyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 April, 1968 [1 May, 1967], No. 20019/67. Heading C3R. Interpolyamides consist of 6,6 units and less than 8 parts by weight (per 100 parts 6,6) of a second aliphatic unit where x = 2 to 20, y = 2 to 22 and z = 2 to 21. Specified second units are 6; 6,8; 11; and 6,12. The inventions claimed in Specifications 1,023,180 and 1,202,536 are disclaimed.
Patent GB-1233200-A (GB)
IPC: C08F14/26
Filed: 1968-10-21
Abstract: 1,233,200. Aqueous P.T.F.E. dispersion. FARBWERKE HOECHST A.G. 21 Oct., 1968 [21 Oct., 1967], No. 49742/68. Heading C3P.  A stabilized aqueous polytetrafluoroethylene dispersion is prepared by polymerization of tetrafluoroethylene in an aqueous medium in the presence of 2 to 25 p.p.m. by weight, calculated on the total reaction mixture, of at least one terpene hydrocarbon and/or at least one oxygen-containing derivative of a terpene hydrocarbon. In the example tetrafluoroethylene is polymerized in the presence of water, P.T.F.E. dispersion, perfluorooctanoic acid, ammonia, white oil, sodium bisulphite, ammonium persulphate, copper sulphate, terpene mixture comprising camphene, α- and γ-terpinene, dipentene, terpinolene and cymene, camphene, dipentene, mixture of dipentene and terpinolene and sodium bisulphate.
Patent GB-1238358-A (GB)
IPC: G05D1/02
Filed: 1968-11-04
Abstract: 1,238,358. Automatic speed control. AMERICAN CHAIN & CABLE CO. Inc. Nov. 4, 1968 [Nov. 2, 1967], No.52152/68. Heading G3R. A vehicle, particularly an unmanned vehicle designed to follow a path embedded in a floor, is provided with a braking device which is energized for a pre-set length of time when the speed exceeds a pre-set value. A non-driven wheel of the vehicle carries magnets 20 sensed by a coil 21 to provide pulses whose spacing is proportional to the speed. The pulses are shaped by filter 24 and Schmitt trigger 25 and then trigger a bi-stable 26. The output of bi-stable 26 is fed to a second bistable 27 associated with a time delay circuit 28 and an and gate 29 such that gate 29 provides an output pulse if the time interval between successive pulses is less than the time constant of circuit 28. This output pulse triggers a bi-stable 30 to energize the brake 22. Bi-stable 30 is re-set after a pre-set time, e.g. 5 seconds, by a timing circuit 31. The brake may be mechanical, electrical or hydraulic.
Patent GB-1239003-A (GB)
IPC: H03K4/62
Filed: 1969-03-07
Abstract: 1,239,003. Rectifying. ATES COMPONENTI ELETTRONICI S.p.A. 7 March, 1969 [8 March, 1968], No. 12134/69. Heading H2F. A power supply for a television receiver comprises a rectifier D 1, a first smoothing circuit R 1, C1, C2, a transistorized chopping circuit Q1, Q2 and a further smoothing arrangement C6. The 220 v. mains supply Vr is converted to 280 v. D.C., at point B, and then chopped by transistors Q1, Q2 under control of line flyback pulses from the transformer Tr1 so as to provide a final supply at point u of 30 v. The primary of the line transformer Tr1 acts as the final smoothing inductor. On first switching on, the capacitor C6 is initially charged via a circuit C3, R2, so that the line output transistor Q3 can provide the chopping pulses for Q1 and Q2.
Patent GB-1250108-A (GB)
IPC: D06P1/613
Filed: 1969-06-27
Abstract: 1,250,108. Dyeing cellulosic materials. SANDOZ Ltd. 27 June, 1969 [28 June, 1968], No. 32736/69. Heading D1B. Cellulosic materials are padded with a padding bath containing a water-soluble sulphuric acid ester of a lencovat dye and one or more polyglycols of formula:  in which X is a whole number, R is a hydrogen atom or a methyl group, the compound having a molecular weight within the range 1,000-20,000. Preferably a mixture of polyethylene and polypropylene glycols may be used and mixtures of different lenco-vat dyes may also be employed. Cotton and cotton/ polyester fibres are specified.
Patent GB-1251101-A (GB)
IPC: C07C51/353
Filed: 1969-02-10
Abstract: 1,251,101. Di-neo-carboxylic acids. BP CHEMICALS Ltd. 17 Nov., 1969 [10 Feb., 1969], No. 7056/69. Heading C2C. Di-neo-carboxylic acids are obtained by treating at a temperature not greater than 80‹ C. and at a reaction time greater than one second an anhydride of a mono-neo-carboxylic acid, which anhydride contains at least one tertiary carbon atom bearing a hydrogen atom separated from the alpha carbon atom by at least 2 C atoms, with not less than 1 mole of a strong acid per mole of anhydride. Examples are given for the production of the compounds.
Patent GB-1252599-A (GB)
IPC: G11B27/26
Filed: 1968-12-17
Abstract: 1,252,599. Transistor switching circuit. GENERAL ELECTRIC CO. 17 Dec., 1968 [26 Dec., 1967], No. 59937/68. Heading H3T. [Also in Division G5] In a record/playback apparatus (see Division G5) the presence of a metal marker on a record is sensed by a light source and two photo-cells 28, 29 connected in a circuit to provide output signals of respective terminals 56, 60. With no marker present, equal currents I 5 , I 6  in the cells are set by potentiometer 44 and transistors 36. 37 conduct to provide zero output on terminals 56, 60. With a marker sensed by cell 28 say, transistor 37 is biased off to provide a + 3V signal at terminal 56. In a modification (Fig. 7, not shown) quiescent current through photocells (28, 29) causes transistors (82, 83) and (88 92) to conduct and provide a low positive voltage on terminals (91, 95) which are each connected to the base of one and the emitter of another transistor (89, 93) to bias these off and allow transistors (90, 94) to conduct and provide zero output on terminals (60, 56). When a marker is sensed by cell (28), the voltage at terminal (91) increases while that at terminal (95) remains unaltered thereby causing transistor (89) to conduct, bias transistor (90) off and switch + 3À6V to output terminal 60.
Patent GB-1256542-A (GB)
IPC: C08G18/32
Filed: 1969-10-31
Abstract: 1,256,542. Impregnating wood. GENERAL MILLS Inc. 31 Oct., 1969 [31 Oct., 1968], No. 53587/69. Heading D1P. Wood is waterproofed by impregnation with a solution, in an inert volatile organic solvent, of an organic polyisocyanate and an imine group-containing derivative of a diisocyanate in a total concentration of 12.5-75% by weight, the equivalent ratio of NCO groups in the polyisocyanate to the imine groups in the derivative being 1.5:1 to 1:1.5. The said derivative is obtained by reaction of a compound OCN(CH 2 ) y -D-(CH 2 ) y NCO (wherein y is 0 or 1 and D is a divalent group resulting from dimerization of an ethylenically unsaturated C 16 -C 22  monocarboxylic acid) with a dialdimine or diketimine, itself being the reaction product of a polyamine containing two NH 2  groups with a compound R 1 .CO.R 2  (wherein R 1  and R 2  are H or an organic group inert to ketimine or aldimine formation, and at least one of R 1  and R 2  is such a group). The polyisocyanate may be aliphatic, aromatic or araliphatic, e.g. a tris (hexamethylene isocyanate) derivative of biuret or a compound OCN-CH 2 -D-CH 2 -NCO where D is derived from dimerized hydrogenated tall oil acids. The derivative exemplified is the reaction product of the last-mentioned diisocyanate and the diketimine prepared from diethylene triamine and methylisobutyl ketone. In examples, soft pinewood is impregnated by dipping and the wood is then air dried. Moisture in the wood and/or the air is believed to unblock the imine groups of the derivative when then react to form a  polymer with the isocyanate.
Patent GB-1257105-A (GB)
IPC: C08F14/06
Filed: 1969-04-23
Abstract: 1,257,105. Polymerizing vinyl chloride. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 April, 1970 [23 April, 1969], No. 20804/69. Heading C3P. Stable aqueous vinyl chloride polymer emulsions suitable for conversion to fibres are prepared by polymerizing vinyl chloride in an aqueous medium below 0‹ C. in the presence of an emulsifying agent which is a water-soluble salt of a sulphonic acid bf formula where R is C 5-20  alkyl and n is 2-12. Polymerization may be effected in the presence of antifreezes, e.g. ethylene glycol with or without methanol; catalysts, e.g. ammonium persulphate and ferrous sulphate, optionally with ascorbic acid; chain transfer agents, e.g. carbon tetrachloride, bromotrichloromethane, lauryl mercaptan and tetrahydrofuran; and stabilizers. The concentration of anti-freeze is preferably reduced by dialysis after polymerization and/or before mixing the emulsion with soluble fibreforming materials. Many examples are given describing the emulsion polymerization of vinyl chloride in the presence of ethylene glycol and mixtures thereof with methanol; catalysts comprising ammonium persulphate, ferrous sulphate and optionally ascorbic acid; sodium salts of acids in which R is nonyl and n is 4 or ammonium salts of acids in which R is nonyl and n is 4, 5 or 5À5; and optionally sodium phosphate buffers and carbon tetrachloride.
Patent GB-1257341-A (GB)
IPC: H01L29/00
Filed: 1969-01-07
Abstract: 1,257,341. Transistor amplifiers. WESTERN ELECTRIC CO. Inc. 7 Jan., 1969 [10 Jan., 1968], No. 922/69. Heading H3T. [Also in Division H1] Power transistors 10À1-10À4 are connected in parallel, each being coupled to a current limiting non-linear device, shown as control transistors 11À1-11À4, each with a by-pass capacitor 13À1- 13-4 across it. Preferably the collector/base paths have diodes 12À1-12À4 in series with the D.C. current path so as to prevent high reverse currents e.g. when an inductive load is switched off. The operating frequency is in the microwave region with the power transistors being NPVN types, the width of the V layer depending on the optimizing of the power output and gain at the required frequency, the variations of which are given in Figs. 7, 8, 9 (not shown). Connection of Fig. 1 with a biased signal source Fig. 2 (not shown), gives a common base amplifier with little attenuation of r.f. signal because of the by-pass capacitors. Figs. 3-6 (see Division H1K) show the integrated circuit layout and the construction of the various components.
Patent GB-1265435-A (GB)
IPC: F02D21/08
Filed: 1970-03-13
Abstract: 1,265,435. Treating I.C.engine charge.  NISSAN MOTOR CO. Ltd. March 13, 1970 [March 22, 1969], No. 12137/70. Heading F1B. To reduce the quantity of tonic nitrogen oxides contained in the exhaust gases of a motor vehicle I.C. engine during acceleration and hill-climbing, exhaust gases are supplied to the intake manifold 2 or to the carburetter 4 downstream of the throttle valve 6. A solenoid coil 19 is energized to move the valve member 15 against the biasing spring 18 and open the passage 13, 14 to the manifold 2 when the switches 22 and 23 are closed. The first switch 22 is closed over a predetermined range of throttle valve angles, e.g. 15 degrees to 45 degrees, by a cam 24 on the throttle shaft 6a and the second normally-open relay switch 23 is closed when the voltage from a speed detector 28 driven from the output shaft of the gear-box 7 corresponds to a vehicle speed in a predetermined range, e. g. 20 to 80 Km/hr. The exhaust recirculation passage 13 contains a filter 13a, e.g. for carbon. In a second embodiment, Fig. 5 (not shown), the second switch (32) is operated by a solenoid coil (34) which is energized by a pulse rate counter (37), connected to the engine distributor, at engine speeds in a predetermined range, e.g. 1, 500 to 3, 200 r.p.m. The ignition switch 31 may be included in the solenoid circuit.
Patent GB-1266932-A (GB)
IPC: G03G15/20
Filed: 1969-05-21
Abstract: 1,266,932. Electrographic apparatus. XEROX CORP. May 21, 1969 [May 31, 1968], No.26019/69. Heading G2H. A photo-conductive sheet 105 is fed by mechanisms 350, 600, 650 between platens 500, 550 which curve the sheet as it passes a rotating turret 700 which imagewise charges the sheet, a rotating magnetic brush 400 which develops the image and a rotating heater unit 800 which fixes the image unit 800 comprises arcuate quartz rods (857), Fig. (not shown) around which are wound Nichrome (R.T.M.) coils (857).
Patent GB-1289356-A (GB)
IPC: B65G1/00
Filed: 1969-09-19
Abstract: 1289356 Foundry plant BADISCHE MASCHINENFABRIK GmbH 19 Sept 1969 [21 Sept 1968] 46407/69 Heading B3F A foundry moulding plant is provided with cooling apparatus for filled moulds (2) stripped at a station 5 from their flasks. A number of trucks 12 are provided along a track 16 and each truck 12 has a trough extending transversely to the track 16. The trough is of such a size that it supports the sand moulds, while cooling, on their bases and two opposing sides. As seen in Fig. 3, the loading of a freshly poured sand mould 7 on to a truck by a pusher 6 results in the removal of a cooled mould 8 on to a shakeout grate 9. The plant may comprise three superimposed tracks 15, 16, 17 in which the trucks 12 travel in the direction of the arrows and in which a mould off- and on-loading station is provided, adjacent the middle track 16. Lifts 18, 19 transfer the trucks 12 between the tracks 15, 16, 17. In order to cool some castings for a longer period than others, the upper track 17 may function as a slow cooling line and the lower as a fast cooling line, the lifts supplying trucks 12 to track 16 more often than track 17.
Patent GB-1290202-A (GB)
IPC: G01B5/04
Filed: 1970-08-28
Abstract: 1290202 Measuring moving strip O KULLMANN 28 Aug 1970 41494/70 Heading G1M Strip material 12, Fig.1, is passed between guide rollers 11, 13 to be contacted by a measuring wheel 4 rotating on a shaft 3 between side plates and driving a counter 5. A roller 6 is pulled down on to the material by means of tension springs 10 and guide members 7, 8 and 9 and a start marker 14 is provided. In Fig. 2 the guide rollers are replaced by guide funnels 15 and the contact roller 6 can be lifted off by a crank 16.
Patent GB-1310531-A (GB)
Title: Transportable conveyor
IPC: E01H1/10
Filed: 1970-04-17
Abstract: 1310531 Road cleaning machines DUNLOP Ltd 19 April 1971 [17 April 1970] 18363/70 Heading E1G A road cleaning machine comprises a blade member 37 which directs material laterally and is located in front of a collector means 9, and a transporting means 20 removing collected material. The machine is drawn by a tow bar 4 behind a vehicle into which it empties. The machine has a frame 1 on which are spring mounted convergent front blades 33, 34, divergent blades 38, 39 of member 37 and curved collector blade 9. Collected material is piled onto floor 18 which forms an extension of channel 21 of conveyor 20. Paddles 29 on an endless belt carry the material up the channel and deposit it in a hopper on the towing vehicle. Mud may be sprayed with water before cleaning, and snow may be heated after being deposited.
Patent GB-1317882-A (GB)
Title: Apparatus for monitoring the contition of molten material
IPC: G01N33/20
Filed: 1969-05-01
Abstract: 1317882 Testing steel BRITISH STEEL CORP 29 April 1970 [1 May 1969] 22373/69 Heading C7D [Also in Divisions G1 and H1] Apparatus for monitoring the temperature or for obtaining cooling characteristics of molten material comprises a head having at least one passageway 33 with an open end through which gas can be passed, the head being adapted to be dipped into molten material so that the open end of the passageway is below the surface of the molten material, and a device for monitoring  through the passageway the condition of the molten material adjacent the said end, the device being movable from a retracted position in the passageway to an advanced position where it extends from the passageway when monitoring is to be effected. As shown, a sheathed thermocouple 17 or a  sampling device Fig. 2 (not shown) is attached to a rod 18 which is reciprocable, by a pistoncylinder arrangement, within a tube 11 forming the passageway 33. Gas may be directed under pressure through an opening 13 towards the open end of the tube so that with the apparatus in use, the change of pressure or rate of flow of gas can be indicative of when the tube touches molten material on being lowered towards the surface of the molten material. Alternatively, parts of the apparatus may be chosen to be electrically conductive so that an electrical level sensing arrangement can be employed to sense the level of the molten material. The thermocouple 17 or sampling device is then inserted into the molten material to obtain the temperature or a sample thereof. In the case of a sample, a temperature indicator is subsequently employed to measure the temperature of the sample as it cools. The apparatus may be additionally provided with a tube 12 forming part of an optical arrangement comprising a lens 15, flexible light pipe 16 and a photo-electric cell so that the temperature of the molten material may be determined by pyrometric means. The apparatus may be modified by the provision of a thermocouple and at least one sampling device in a common head.